feat: allow empty OrganizationalEntity object (#768)

fixes #764

Signed-off-by: Johannes Feichtner <[email protected]>

Author: Churro

Diff for: cyclonedx/model/contact.py

@@ -296,10 +296,6 @@ def __init__(
         contacts: Optional[Iterable[OrganizationalContact]] = None,
         address: Optional[PostalAddress] = None,
     ) -> None:
-        if name is None and not urls and not contacts:
-            raise NoPropertiesProvidedException(
-                'One of name, urls or contacts must be supplied for an OrganizationalEntity - none supplied.'
-            )
         self.name = name
         self.address = address
         self.urls = urls or []  # type:ignore[assignment]

Diff for: tests/_data/own/json/1.6/issue764.json

@@ -88,6 +88,19 @@ def test(ls: LicenseRepository) -> None:
         test(list(bom.components)[0].licenses)
         test(list(bom.services)[0].licenses)
 
+    def test_regression_issue764(self) -> None:
+        """
+        regression test for issue#764.
+        see https://github.com/CycloneDX/cyclonedx-python-lib/issues/764
+        """
+        json_file = join(OWN_DATA_DIRECTORY, 'json',
+                         SchemaVersion.V1_6.to_version(),
+                         'issue764.json')
+        with open(json_file) as f:
+            json = json_loads(f.read())
+        bom: Bom = Bom.from_json(json)  # <<< is expected to not crash
+        self.assertIsNotNone(bom)
+
     def test_regression_issue690(self) -> None:
         """
         regressio test for issue#690.